At the greeter there are three available desktop environments to choose from. These are:

GNOME (X-Wayland), GNOME Classic, GNOME on Xorg

I have been using the last one daily. Since I have been getting a lot of system crashes, I decided to try GNOME (X-Wayland) again to see if these would diminish; however the arrow cursor locked-up immediately and the desktop would not load even after 5 min.

I have the following kernels:

4.9.14-200.fc25.x8664, 4.9.13-201.fc25.x8664, Fedora (Rescue)

None of these would load GNOME (X-Wayland) and Fedora (Rescue) stated "You are in emergency mode" and would not start X.